Peters



(No Model.) 3 Sheets-Sheet 1.

\ A; P. OSBORN. TYPE WRITING MAGHINE.

No. 387,534. Patented Aug. 7, 1888.

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A. P. OSBOR N.

TYPE WRITING MACHINE.

(No Model.)

Patented Aug. '7, 1888.

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TYPE WRITING MACHINE. No. 387,534. Patented Aug. 7, 1888.

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v m flttorney UNITED STATES PATENT -QFFICEO ALVAH P. OSBORN, OFTBUMANSBURG, NEW YORK, ASSIGNOR TO FREDRIO D. BARTO, OF SAME PLACE.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 387,534, dated August7, 1888.

Application filed November 23, 1886. Serial No. 219,612.

To all whom it may concern:

Be it known that I, ALVAH P. OsBoRN, a citizen of the United States,residing at Trumansburg, in the county of Tompkins and State of NewYork, have invented certain new and useful Improvements in Type-WritingMachines; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification. 5This invention has relation to type-writers,

and the object is to provide a simple and inexpensive device of thiskind; and to these endsthe novelty in the present invention consists inthe combination, with the type-wheel, the dial-plate, and theoperatingarm, of the indicator adjustable in' a recess in the forwardedge of the operating-arm and the toothed rack engaged by the indicator,as will be here inafter more fully described, and pointed out in theclaim.

- In the accompanying drawings the same letters of reference indicatesimilar parts of the invention.

Figure l is a view in perspective of my improved writing-machine,showing the position of the hand as it appears when the machine is inoperation. Fig. 2 is a longitudinal side elevation of the same. Fig. 3is a plan view of a portion of the periphery of the type-wheel, showingthe arrangement of the capitals, lower case, figures,punctuation-points, and other arbitrary marks used in writing. Fig. 4.is a transverse section of the machine on the line m a: of Fig. 2. Fig.5 is a detail of the bell or alarm mechanism; and Fig. 6 is a top planview of the type-indicator, showing in dotted lines the switch by meansof which the capitals and lower case are printed when desired.

A is the base of the machine, to the righthand end of which is securedan upright arm, B, in the rear end of which is journaled a shaft, C, andupon this shaft is mounted a frame, D, which is provided with afreely-rotating shaft, E, upon the outer end of which is 50 secured atype-wheel, F, to the inner side of (No model.)

which is rigidly attached a gear wheel, G. This gear G meshes with andis operated by a curved rack, H, secured to the ends a aof the arm I,and said arm is provided with a vertically depending shaft, J, journaledin the socket K of the frame D, so as to admit of the said arm and rackhaving a horizontal motion to the right and left, thereby rotating andcorresponding to one complete revolution of the gear and type wheels.

The frame D has aslight vertical motion on the shaft 0, and its forwardend moves between the two guide-posts b b, which prevent any lateralmotion of said frame. The normal position of this frame is up, as shownin Fig. 2, and it is held thus by the leaf-spring 0, one end of which issecured to the top of the forward end of the arm B, while the other orfree end of said spring presses against the under side of the frame D,keeping it up.

L is a removable curved dial-plate having the characters placed thereonto correspond to the arrangement of the characters on the type-wheel,and M is a curved toothed rack having slots d between the teeth,whichcorre- 7 spond in number to the characters on the dialplate L.

N is the indicator-point, consisting, as shown, of a leaf-spring securedto a depending rib, i, on the under side of the arm I. The indica- 8otor N extends slightly past the forward end of the arm I and engages thenotches d in the curved rack M in the operation of the device. The upperforward corner of the indicator is provided with a small shoulder whichworks in a recess, e, in the forward edge of the arm I to set thetypewheel to print upper or lower case letters, as will be more fullyreferred to hereinafter.

Depending from the forward end of the arm 0 B is a bracket, 0, having alever, O, pivoted to its lower end, and said lever O carries aninking-roller, 0, on its free end, the lever being so bent and of such alength that the inking-roller will be in contact with the periphery 5 oredge of the type-wheel, and to counteract the effect of gravity andprevent the lever and inking-roller dropping away from the typewheel Iprovide a spring, 0, having its opposite ends secured to the lever O andthe bracket 0, respectively. This spring draws the lever 0' toward thebracket 0, and consequently keeps the inking roller in contact with thetypewheel.

I have shown the lever O and the inkingroller as being on one side onlyof the bracket and typewheel; but it will be understood that itwould bemere duplication to provide them on both sides. A pin, G, is provided onthe front side of the bracket 0, and when the gear-wheel G is presseddownward in using the machine this pin engages the said wheel and locksthe same against side movement, as will presently appear.

P is the paper-carrying roller, which may be of any desired length andis carried by a frame, 1), sliding on the base A. The frame 12 isprovided with a series of ratchet-teeth, 1, along one edge, which areengaged by a pawl, Q, and the frame thereby caused to glide along thebase, as will be understood. The frame is kept in a straight line bymeans of an upturned edge, 2,which works in a groove in the under sideof a guide-plate, Q, secured to the base. The papercarrying roller isprovided with the usual means for holding the paper thereupon, and isalso provided with means for turning the same after a complete line hasbeen printed. In the present case I have shown a thumbscrew, 3, for thispurpose.

The pawl Q, which engages the ratchet-teeth 1, and thereby moves theframe which carries the paper-carrying roller, is held in engage mentwith the said teeth by a spring, q, se' cured to the guide-plate Q andbearing upon the pawl. This springq is slotted at its point ofattachment to the guide-plate, so thatits tension may be adjusted as maybe desired. The pawl extends back to an arm, R, depending from the frameD, to which it is pivotally secured and by which it is operated.

S is a pivoted lever having acrank-shaft, s, which extends through thearm B and under the pawl Q, the cranked portion coming directly underthe pawl and acting upon the same, as will be presently described.

8' is a spring, which serves to keep the le ver S in its normalposition, which is that shown in Figs. 1 and 2.

T is a bell secured to the arm B, and U is the hammer carried by alever, V, which is pivotal] y supported by a crank-shaft, W, whichpasses through the guide-plate Q and under the edge of the frame p. Whenthe end of a line has been reached,the hammer U falls upon the bell Tand gives an alarm, when the operator slides the frame 12 back to thestartingpoint.

From the foregoing it will be seen that my machine is extremely simpleand free from complication in its construction and combinations ofparts, and it is thought that its operation will be as readilyappreciated. The printing is done, as is obvious, by pressing thetype-wheel down upon the paper carried by the roller P. This isaccomplished by pressing upon the forward end of the arm I, which servesas a hand-rest for the operator, as shown in Fig. l. The wheel is causedto print any desired letter by turning the arm Ito one slde or the otheruntil theindicator N points to the proper letter on the dial-plate L.The arm I is then pressed down, causing the indicator-N to enter thenotch d, against which the desired letter is shown. As the arm I isvibrated from side to side the rack H is carried with it,meshing withthe gear-wheel G and causing it to revolve, as will be understood. Thetype-wheel revolves simultaneously with the gear-wheel G, and theletters are so arranged that when the indicator points to a letter onthe dialplate L the same letter will be at the lowest point of thecircumference of the type-wheel. As shown in the drawings, theindicatoris set so that the machine will print lower-case or small letters. Bygiving the thumb screw X a partial turn its crank-shaft as will be madeto bear against the indicator and push itto the other side of the recess0, and the machine will then print upper-case or caps. The reason ofthis is that when the indicator passes downward into the notch d thetype-wheel is can ried straight downward, as any side vibration will beprevented by the sides of the notch. The only way the position of thewheel can be changed, therefore, is by shifting the position of theindicator, which is done as described. The letters are arranged aroundthe typewheel with the upper and lower case alternating, as shown inFig. 3. The recess a is equal in width to the space between the twoforms of the same letter, while the spaces between the teeth on thegear-wheel G and the rack H are equal to the distance between differentletters. This arrangement insures alignment, and also secures the changefrom lower to upper case letters when the indicator is shifted. When thegear-wheel and type-wheel are pressed downward,the lowermost teeth onthe gear-wheel pass on opposite sides of the pin G and the gear-wheel isconsequently locked against rotation'between the said pin and the curvedrack H. This prevents the rotation of the type-wheel after it hastouched the paper and the consequent blurring of the letter printed. Thearm R, depending from the frame D,forms an integral part of said frame,and consequently when the frame is depressed the arm will be swungbackward, carrying the pawl Q with it. When the pressure on the frame isrelieved, the spring 0 throws it up ward, and the arm R swings forward,communicating its motion to the pawl Q, which engages the ratchet-teeth1 and shoves the frame and paper carrying roller forward. \Vhen the linehas been completed, and it is desired to push the roller back inposition to print another line, the lever S is thrown down and thecrank-shaft sis turned up against the pawl Q, throwing it up out ofengagement with the ratchetteeth. The paper-carrying roller is thenpushed back to the startingpoint and the lever S released, allowing thepawl to engage the ratchet-teeth. While the IIO machine is beingoperated the frame 10 rests upon the crank-shaft Wand prevents itsturning. The lever V,which carries the bell-hammer U, is inclined towardthe bell T, and consequently tends to fall upon the same by reason ofthe force of gravity. This tendency is overcome by the frame 10, restingupon the crankshaft W; but as soon as the frame has passed thecrank-shaft the pressure thereon is removed, and the hammer consequentlyfalls upon the bell, sounding an alarm and notifying the operator thatthe end of the line has been reached. The paper-carrying roller is thenpushed back to the starting-point, and

the machine is operated, as described, to print another line. The end ofthe frame 1) is beveled on its under side, as shown in dotted lines,Fig. 5, so as to ride over the upturned crankshaft W and force thebell-hammer back to its raised position.

In order to print letters other than the ordinary Roman, it is onlynecessary to remove the type-wheel and substitute one carrying thedesired style of letter. In case a wheel is used carrying the lettersused in a foreign language which does not use the English letters suchas the Greek or Russian-the dial-plate L must be removed and replaced byone hearing the alphabet corresponding to the one on the type-wheel.These changes can be readily accomplished, as the parts are easilygotten at, as will be readily understood from the drawln s do not claimthe type-wheel in the present application, but reserve the right to makethat feature the subject-matter of a separate application.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

The combination, with the type-wheel, the dial-plate, and theoperating-arm, of the indicator adjustable in a recess in the forwardedge of the operating-arm, and the toothed rack M, engaged by theindicator, substantially as specified.

In testimony whereof I affiX my signature in presence of two witnesses.

ALVAH P. OSBORN. Witnesses;

FRED. D. BARTO, R. VERNAM BARTO.

